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lines changed Original file line number Diff line number Diff line change 188188| [ 0213. 打家劫舍 II] ( https://leetcode.cn/problems/house-robber-ii/ ) | [ 题解] ( https://github.com/ITCharge/AlgoNote/tree/main/docs/solutions/0200-0299/house-robber-ii.md ) | 数组、动态规划 | 中等 |
189189| [ 0215. 数组中的第K个最大元素] ( https://leetcode.cn/problems/kth-largest-element-in-an-array/ ) | [ 题解] ( https://github.com/ITCharge/AlgoNote/tree/main/docs/solutions/0200-0299/kth-largest-element-in-an-array.md ) | 数组、分治、快速选择、排序、堆(优先队列) | 中等 |
190190| [ 0217. 存在重复元素] ( https://leetcode.cn/problems/contains-duplicate/ ) | [ 题解] ( https://github.com/ITCharge/AlgoNote/tree/main/docs/solutions/0200-0299/contains-duplicate.md ) | 数组、哈希表、排序 | 简单 |
191- | [ 0218. 天际线问题] ( https://leetcode.cn/problems/the-skyline-problem/ ) | [ 题解] ( https://github.com/ITCharge/AlgoNote/tree/main/docs/solutions/0200-0299/the-skyline-problem.md ) | 树状数组、线段树、数组、分治、有序集合、扫描线、堆(优先队列) | 困难 |
191+ | [ 0218. 天际线问题] ( https://leetcode.cn/problems/the-skyline-problem/ ) | [ 题解] ( https://github.com/ITCharge/AlgoNote/tree/main/docs/solutions/0200-0299/the-skyline-problem.md ) | 树状数组、线段树、数组、分治、有序集合、排序、 扫描线、堆(优先队列) | 困难 |
192192| [ 0219. 存在重复元素 II] ( https://leetcode.cn/problems/contains-duplicate-ii/ ) | [ 题解] ( https://github.com/ITCharge/AlgoNote/tree/main/docs/solutions/0200-0299/contains-duplicate-ii.md ) | 数组、哈希表、滑动窗口 | 简单 |
193193| [ 0220. 存在重复元素 III] ( https://leetcode.cn/problems/contains-duplicate-iii/ ) | [ 题解] ( https://github.com/ITCharge/AlgoNote/tree/main/docs/solutions/0200-0299/contains-duplicate-iii.md ) | 数组、桶排序、有序集合、排序、滑动窗口 | 困难 |
194194| [ 0221. 最大正方形] ( https://leetcode.cn/problems/maximal-square/ ) | [ 题解] ( https://github.com/ITCharge/AlgoNote/tree/main/docs/solutions/0200-0299/maximal-square.md ) | 数组、动态规划、矩阵 | 中等 |
Original file line number Diff line number Diff line change 318318| [ 0239. 滑动窗口最大值] ( https://leetcode.cn/problems/sliding-window-maximum/ ) | [ 题解] ( https://github.com/ITCharge/AlgoNote/tree/main/docs/solutions/0200-0299/sliding-window-maximum.md ) | 队列、数组、滑动窗口、单调队列、堆(优先队列) | 困难 |
319319| [ 0295. 数据流的中位数] ( https://leetcode.cn/problems/find-median-from-data-stream/ ) | [ 题解] ( https://github.com/ITCharge/AlgoNote/tree/main/docs/solutions/0200-0299/find-median-from-data-stream.md ) | 设计、双指针、数据流、排序、堆(优先队列) | 困难 |
320320| [ 0023. 合并 K 个升序链表] ( https://leetcode.cn/problems/merge-k-sorted-lists/ ) | [ 题解] ( https://github.com/ITCharge/AlgoNote/tree/main/docs/solutions/0001-0099/merge-k-sorted-lists.md ) | 链表、分治、堆(优先队列)、归并排序 | 困难 |
321- | [ 0218. 天际线问题] ( https://leetcode.cn/problems/the-skyline-problem/ ) | [ 题解] ( https://github.com/ITCharge/AlgoNote/tree/main/docs/solutions/0200-0299/the-skyline-problem.md ) | 树状数组、线段树、数组、分治、有序集合、扫描线、堆(优先队列) | 困难 |
321+ | [ 0218. 天际线问题] ( https://leetcode.cn/problems/the-skyline-problem/ ) | [ 题解] ( https://github.com/ITCharge/AlgoNote/tree/main/docs/solutions/0200-0299/the-skyline-problem.md ) | 树状数组、线段树、数组、分治、有序集合、排序、 扫描线、堆(优先队列) | 困难 |
322322
323323
324324### 哈希表题目
501501
502502| 标题 | 题解 | 标签 | 难度 |
503503| :--- | :--- | :--- | :--- |
504- | [ 0218. 天际线问题] ( https://leetcode.cn/problems/the-skyline-problem/ ) | [ 题解] ( https://github.com/ITCharge/AlgoNote/tree/main/docs/solutions/0200-0299/the-skyline-problem.md ) | 树状数组、线段树、数组、分治、有序集合、扫描线、堆(优先队列) | 困难 |
504+ | [ 0218. 天际线问题] ( https://leetcode.cn/problems/the-skyline-problem/ ) | [ 题解] ( https://github.com/ITCharge/AlgoNote/tree/main/docs/solutions/0200-0299/the-skyline-problem.md ) | 树状数组、线段树、数组、分治、有序集合、排序、 扫描线、堆(优先队列) | 困难 |
505505| [ 0391. 完美矩形] ( https://leetcode.cn/problems/perfect-rectangle/ ) | [ 题解] ( https://github.com/ITCharge/AlgoNote/tree/main/docs/solutions/0300-0399/perfect-rectangle.md ) | 几何、数组、哈希表、数学、扫描线 | 困难 |
506506| [ 0850. 矩形面积 II] ( https://leetcode.cn/problems/rectangle-area-ii/ ) | [ 题解] ( https://github.com/ITCharge/AlgoNote/tree/main/docs/solutions/0800-0899/rectangle-area-ii.md ) | 线段树、数组、有序集合、扫描线 | 困难 |
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